A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
Classification: Copper screws, nuts, bolts, rivets, and other fasteners not threaded
NSN 6650-00-067-3572
NSN 2925-00-431-9369
NSN 5960-00-357-3043
NSN 5998-00-542-9656
NSN 5998-01-319-9826
NSN 6130-00-412-4189
NSN 6110-00-260-0130
NSN 6240-00-141-0129
NSN 6620-01-652-4349
NSN 7035-01-394-1324
NSN 7035-00-420-1310
NSN 5925-01-631-0850